Method of making fish food



March 20, 1945.,

R. D. E|SAMAN METHOD OF MAKING FISH FOOD Filed March 1, 1941 INVENTO .U. E254 A ORNEY Patented Mar. 20, l945 I lvnz rnonor MAKING; ISH Foonj p j Roy B. .Eisaman; Oak Park, 111., assignor to Jasper l l l Foods Newporh Mich a partnership composed l A of Roy D. Eisanlan, Paul F. Seibold, and A rthur C; Johnson Application March'l, 1941; Serial No: 381,215

y fl ZClaQiins. My invention relates to flsh food, and partic ularly to alflsh food made of a plurality; of ingredients which provides a balanced-diet, andis a continuation'inpart of my-co-pending application, Serial No. 320,345, filed February 23; 1940.

In the above mentioned application a. fishlood':

is manufactured out of a number of ingredients vitamins.

Y trated in Fi i l; l Fig; 3is'a perspectiveviewof one of the pellets a grinder, hammer mill, or the like device andare sistencyp The kneaded 1mixtureis the -material which is passed through a-'cutoff' and sealing mechanism to form hollowfs ealed pellets which are thereafter' dried andcapable' to float upon water. While it was found in practice that the ingredients themselves provided the binder, suitable binders, such as dextrin'e, could be added to the mixture, which insome instances l extended the fioating'time of the pellets.

In practicing the present invention small parl ticles of themixed, compacted and dried material are provided for the feeding of fingerlings, mini nows and small varieties of fish; The material may be extruded and cut into small pellets which i may be readily dried and then ground or otherwise reduced into particle form with each particle containing the ingredients. The particles provide a completely balanced diet for the fish and prevent them from selecting that portion of food which is more satisfying to the taste and avoiding the other portions which it requires.

Accordingly, the main objects of my invention are; to provide particles of fish food, each of which contains a plurality of ingredients bonded together; to form a fish food by mixing a plu rality of ingredients with water, compacting the 1 ingredients while forming them into. a mass which may readily be dried, and thereafter reducing the mass to small particles each of which contains the bonded ingredients; and, in general, to form a fish food of a plurality of ingredients into small particles which provide a balanced diet for fish, and which is economical of manufacture.

Other objects and features of novelty of my.

Wheat pufis 15 l Rice pulls. 7

Bran flakes M 5 l Corn flakes 5 Soybean m l 10 Dehydrated tomato pulp 10 Cotton seed meal 10 Cheese Egg shell 4. 10 I Dehydrated bread crumbs 10 Salmon egg'meal 2 Herring fish meal--- 2 Shrimp meal l 2% Crab meal 2 Meat scrap 5 Dried yeast A .Vitamelk l $6;

invention will be either specifically pointed out lowing description taken in conjunction with the accompanying drawing, wherein:

l Corn germ meal amino acids and fat soluble vitamins.

. Dried skim milk Figure l is a diagrammatical viewajof the ma chinery which may be employed*to practice my' invention; A ,jFigQZ is an enlarged broken; sectional view 'of the compacting and; extruding mechanism illus j afterlbeing severed in the machine in-Fig 2;

Fig. 4is a view of the particles 'formedfrom" the pellet illustratedin Fig; 3 after theyh ave been dried."

While various ingredients might be employed in the dough to be formed into the floating .pel

lets whichi constitutes'one part of my inventive concept, Ifprefer to employ certain'typesofin scrap and the like; are employed for one purpose orianother to produce-a balance of proteins; f2,17S',"i

A specific food which was compounded contained the following ingredients. l a

l Per cent The Vitamelk is a prepared product made the following ingredients.

Ground oat groats Dried crab meat Kelp Molasses from Milk sugar feed Fish meal Soybean oil meal Corngluten meal Cod liver oil Wheat germ meal meal Dehydrated spinach Dehydrated tomato O. P. linseed meal Dehydrated orange It is to be understood that all of the ingredients Dehydrated alfalfa leaf in the proportions set forth need not be utilized 7 and that the various proportions may be changed. It is also within the purview of my invention to include drugs among the ingredients, for medicinal purposes. Iodine, for example,

may be added in foods for fresh water fish. The

particular form and method of manufacture of food lends itself very readily to the inclusion of drugs for medicinal or other purposes. The ingredients can. be procured in the open market in cooked form so that it is only necessary to powder the various substances and after mixing,

knead them to form a stiff dough.

In Fig. 1, I have illustrated a machine II] which may be a grinder, hammer mill, or the like, which reduces the ingredients into powdered form. A mixture is formed from proper amounts of the various ingredients and this is thoroughly agitated in a mixing device H where the particles are evenly distributed. A proper amount of water is added to the mixture which is transferred to a kneading machine l2 where the mixture is thoroughly kneaded. The kneaded material is placed within a cylinder I3 of'an hydraulic ram in which a piston I4 forces the, material from an extruding head l5 through a cutting and sealing mechanism 16 from which the pellets ll, illustrated in Fig. 3, pass into a drying oven. I 8. From the drying oven the pellets arecarried by an endless belt I9 to a machine 2| where they are crushed or otherwise acted upon to produce the small'particles 22 illustrated in Fig. 4.

, Each of the particles 22 contain the ingredients which are thoroughly bonded together by the inherent adhesion provided by the ingredients themselves or by added bonding agents, such as dextrine, which produces a satisfactory bond. A balanced diet, which may be medicated when desired, isthereby provided by each of the particles ."Fish; foods made of a plurality of loose ingredients have only certain portions taken by the fish and the balanced diet or medication intended to be provided thereby is lost. By compacting the material by a rolling or extruding operation a bond of the various ingredients is ob-' tained so that each of the particles provides a balanced diet. While I have illustrated the particles as being extruded, cut ofi and sealed, as illustrated in Fig. 3, it is to be understood that this method was illustrated by way of example and that any method of compacting and forming the material into sheets or other form which may be readily dried falls within the purview of my invention; I

While I have described and illustrated but a single embodiment of my invention, it will be apparent to those skilled in the art that various changes, omissions, additions and substitutions may be made therein without departing from the spirit and scope of my invention, as set forth in the accompanying claims.

What I claim is;.

,1. The method of manufacturing food for fish which includes the steps of mixing a plurality of cooked meals with water, compacting said mixture, separating said mixture into hollow pellets which are readily dried, drying said pellets while the meals remain .bonded by the inherent adhesion of the mixture, and crushing said hollow pellets to provide particles the thickness of the Wall of said pellets.

2. The method of manufacturing food for fish which includes the steps of, mixing a plurality of cooked meals with water, compacting said mixture into hollow pellets which may be readily dried, drying said pellets to bond the meals together and reducing said dried pellets into small particles each containing said ingredients and having the thickness of the wall of said pellets. 40

ROY D. EISAMAN. 

